Operating characteristics of HTS power supply for and improving temporal stability of coated conductor magnet in liquid helium

D. K. Park; Y. J. Kim; S. E. Yang; N. Y. Kwon; H. G. Lee; T. K. Ko

doi:10.1016/j.physc.2009.05.156

Operating characteristics of HTS power supply for and improving temporal stability of coated conductor magnet in liquid helium

D. K. Park, Y. J. Kim, S. E. Yang, N. Y. Kwon, H. G. Lee, T. K. Ko

Department of Electrical and Electronic Engineering

Research output: Contribution to journal › Article › peer-review

1 Citation (Scopus)

Abstract

High temperature superconducting (HTS) magnets have been studied for insert coils of high field nuclear magnetic resonance (NMR) magnets but the temporal stability required for NMR is hard to achieve due to low index value and high joint resistance. In this research, the HTS power supply with magnets using coated conductor (CC) was investigated and tested in helium cryogenic system. All joints were conducted by soldering after etching stabilizer of the CC to minimize joint resistance. The pumping rate was determined by current amplitude and timing sequential control of heaters and the electromagnet. Operating characteristics were analyzed to enhance charging efficiency and the feasibility of temporally stable CC magnet during persistent mode was studied.

Original language	English
Pages (from-to)	1804-1807
Number of pages	4
Journal	Physica C: Superconductivity and its applications
Volume	469
Issue number	15-20
DOIs	https://doi.org/10.1016/j.physc.2009.05.156
Publication status	Published - 2009 Oct 15

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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10.1016/j.physc.2009.05.156

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title = "Operating characteristics of HTS power supply for and improving temporal stability of coated conductor magnet in liquid helium",

abstract = "High temperature superconducting (HTS) magnets have been studied for insert coils of high field nuclear magnetic resonance (NMR) magnets but the temporal stability required for NMR is hard to achieve due to low index value and high joint resistance. In this research, the HTS power supply with magnets using coated conductor (CC) was investigated and tested in helium cryogenic system. All joints were conducted by soldering after etching stabilizer of the CC to minimize joint resistance. The pumping rate was determined by current amplitude and timing sequential control of heaters and the electromagnet. Operating characteristics were analyzed to enhance charging efficiency and the feasibility of temporally stable CC magnet during persistent mode was studied.",

author = "Park, {D. K.} and Kim, {Y. J.} and Yang, {S. E.} and Kwon, {N. Y.} and Lee, {H. G.} and Ko, {T. K.}",

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T1 - Operating characteristics of HTS power supply for and improving temporal stability of coated conductor magnet in liquid helium

AU - Park, D. K.

AU - Kim, Y. J.

AU - Yang, S. E.

AU - Kwon, N. Y.

AU - Lee, H. G.

AU - Ko, T. K.

PY - 2009/10/15

Y1 - 2009/10/15

N2 - High temperature superconducting (HTS) magnets have been studied for insert coils of high field nuclear magnetic resonance (NMR) magnets but the temporal stability required for NMR is hard to achieve due to low index value and high joint resistance. In this research, the HTS power supply with magnets using coated conductor (CC) was investigated and tested in helium cryogenic system. All joints were conducted by soldering after etching stabilizer of the CC to minimize joint resistance. The pumping rate was determined by current amplitude and timing sequential control of heaters and the electromagnet. Operating characteristics were analyzed to enhance charging efficiency and the feasibility of temporally stable CC magnet during persistent mode was studied.

AB - High temperature superconducting (HTS) magnets have been studied for insert coils of high field nuclear magnetic resonance (NMR) magnets but the temporal stability required for NMR is hard to achieve due to low index value and high joint resistance. In this research, the HTS power supply with magnets using coated conductor (CC) was investigated and tested in helium cryogenic system. All joints were conducted by soldering after etching stabilizer of the CC to minimize joint resistance. The pumping rate was determined by current amplitude and timing sequential control of heaters and the electromagnet. Operating characteristics were analyzed to enhance charging efficiency and the feasibility of temporally stable CC magnet during persistent mode was studied.

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JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 15-20

ER -

Operating characteristics of HTS power supply for and improving temporal stability of coated conductor magnet in liquid helium

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